In a fatal case, which happened in St. John’s Wood, where two girls were killed by the use of one of these stoves, the writer found, on investigation, that the quantity of carbonic acid produced was capable of rendering poisonous the air of a room ten times the size of the one in which it was used; and yet the maker is guilty, even to the present time, of the moral turpitude of recommending these as fitted for burning in a close room. Men who, knowing the poisonous effects of these stoves, still sell them, recommending them as wholesome, with the deliberate assertion that their prepared fuel, which is merely charcoal disguised, is not deleterious, evince a much more lively interest in the state of their own pockets, than in the lives of their customers. Let it not be imagined that the case of Mr. Coathupe is only a solitary one; the action of burning charcoal is of the same deleterious nature on all persons. In January, 1836, seventy people suffered the same symptoms, though in a milder degree, in the church at Downham, in Norfolk, where two of these dangerous contrivances had been introduced: and in the _Annales d’Hygéine_, tome xi., will be found an account of the suicides in the department of the Seine in ten years, these were 4595 in number, of which 1426 deaths were produced by burning charcoal. We would again recommend our readers under no circumstances, however much they may be recommended by false assertions, to admit stoves without flues into their houses. In France, the deaths from charcoal have been mostly suicides, as, from their deadly effects, they are never used in close rooms. But in England, persons are often ignorant of the action of charcoal fumes, and relying on the word of some stove makers, whose “conscience,” as Milton says, “is their maw,” the numerous deaths have been chiefly those of innocent persons, victims to the cupidity of the makers. X. CLEANING AND DISINFECTING. In our previous papers on Domestic Manipulation, we have several times given directions as to the best mode of conducting processes for cleaning various articles, such as bottles, glass, &c. What remains, therefore, under this head, is to furnish hints for cleaning miscellaneous articles, which have not been included under previous accounts; and the very important process of disinfecting, which may be regarded as a medical cleaning, falls, naturally, into the same chapter. As the substances to be submitted to the process of cleaning vary greatly from one another, we shall find it more convenient to throw our remarks into the form of miscellaneous hints, than to arrange them in a chapter for consecutive reading.